Troubleshooting
Samsung Electronics12-18
■
: Comp Down by Compressor Emission Temperature Sensor
1.
Check Method
Outdoor unit display
Indoor unit display (Operation) (Timer) (Fan) (Filter) (Defrost)
Judgment method Detect when the compressor emission temperature sensor value is over 135°C
Insufficient refrigerant / Indoor and outdoor EV clogging / Service valve clogging / Emission tem-
perature sensor defect / Pipe and filter clogging / Liquid EEV break / Liquid Tube Valve break /
Compressor Discharge Check Valve leakage of the outdoor unit on the stop side
Is the compressor emission
sensor resistance normal?(Refer to )
Is the service valve opened all?
Are the indoor unit and outdoor unit
EEV operated normally?
Is there any clogged part in a piping
(Filter, etc.)?
Is there any leakage on the
liquid valve of the outdoor unit on the stop side
or the emission Check Valve during some
outdoor units are operated only?
Test operation
No
No
No
Yes
Yes
Yes
Yes
Yes
No
No
Replace the emission
temperature sensor
Connect the S-net and Manifold
Gauge(Requisite)
Open the service valve.
Check the relevant EEV.
Check the pipe.
Replace the relevant parts.
Check the amount of refrigerant
Causes
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